Light emitting device and display apparatus having the same
A stacked light emitting device includes a first LED stack, a second LED stack disposed under the first LED stack, a third LED stack disposed under the second LED stack, and a plurality of pads disposed over the first LED stack. Each of the first, second, and third LED stacks has a light generation region and a peripheral region disposed around the light generation region. The plurality of pads is disposed on the peripheral region of the first LED stack.
1 . A light emitting apparatus, comprising:
a circuit board;
a light emitting device including a first multiple layer region, a second multiple layer region, a third multiple layer region, and a peripheral region;
an electrode disposed between the circuit board and the light emitting device; and
connectors electrically connected to the light emitting device,
wherein:
the peripheral region includes a first type semiconductor layer,
the first multiple layer region is disposed between the electrode and the second multiple layer region,
the second multiple layer region is disposed between the first multiple layer region and the third multiple layer region, and configured to emit light having a first peak wavelength,
the third multiple layer region is disposed on the second multiple layer region and, configured to emit light having a second peak wavelength,
the connectors are disposed across the peripheral region and spaced apart from each other in a lateral direction,
the first peak wavelength is longer than the second peak wavelength, and
the light emitting device includes a side surface that is inclined with respect to an upper surface of the light emitting device.
2 . The light emitting apparatus according to claim 1 , wherein the first multiple layer region is surrounded by the peripheral region.
3 . The light emitting apparatus according to claim 2 , wherein the light emitting device further comprises a transparent electrode disposed between the third multiple layer region and one of the connectors that is electrically connected to the transparent electrode.
4 . The light emitting apparatus according to claim 1 , wherein the light emitting device is mirror symmetric in a top view.
5 . The light emitting apparatus according to claim 1 , further comprising another light emitting device disposed adjacent to the light emitting device, wherein the light emitting device and the another light emitting device are electrically connected in parallel.
6 . A light emitting apparatus, comprising:
a circuit board;
a light emitting device including a first multiple layer region, a second multiple layer region, a third multiple layer region, and a peripheral region;
an electrode disposed between the circuit board and the light emitting device; and
connectors electrically connected to the light emitting device,
wherein:
the first multiple layer region is surrounded by the peripheral region;
the first multiple layer region is disposed between the electrode and the second multiple layer region;
the second multiple layer region is disposed between the first multiple layer region and the third multiple layer region, and configured to emit light having a peak wavelength corresponding to green color;
the third multiple layer region is disposed on the second multiple layer region and configured to emit light having a peak wavelength corresponding to blue color;
the connectors are disposed across the peripheral region, and spaced part from each other in a lateral direction; and
the light emitting device includes a side surface that is inclined with respect to an upper surface of the light emitting device.
7 . The light emitting apparatus according to claim 6 , wherein the peripheral region includes a first type semiconductor layer.
8 . The light emitting apparatus according to claim 7 , wherein the light emitting device further comprises a transparent electrode disposed between the third multiple layer region and one of the connectors that is electrically connected to the transparent electrode.
9 . The light emitting apparatus according to claim 6 , wherein the light emitting device is mirror symmetric in a top view.
10 . The light emitting apparatus according to claim 6 , further comprising another light emitting device disposed adjacent to the light emitting device, wherein the light emitting device and the another light emitting device are electrically connected in parallel.
11 . A light emitting apparatus, comprising:
a circuit board;
a light emitting device including a first multiple layer region, a second multiple layer region, a third multiple layer region, and a peripheral region;
an electrode disposed between the circuit board and the light emitting device; and
connectors electrically connected to the light emitting device,
wherein:
the first multiple layer region is surrounded by the peripheral region;
the first multiple layer region is disposed between the electrode and the second multiple layer region;
the second multiple layer region is disposed between the first multiple layer region and the third multiple layer region, and configured to emit light having a first peak wavelength;
the third multiple layer region is disposed on the second multiple layer region and configured to emit light having a second peak wavelength;
the connectors are disposed across the peripheral region and spaced part from each other in a lateral direction;
the first peak wavelength is longer than the second peak wavelength; and
the light emitting device includes a side surface that is inclined with respect to an upper surface of the light emitting device.
12 . The light emitting apparatus according to claim 11 , wherein the peripheral region includes a first type semiconductor layer.
13 . The light emitting apparatus according to claim 12 , wherein the light emitting device further comprises a transparent electrode disposed between the third multiple layer region and one of the connectors that is electrically connected to the transparent electrode.
14 . The light emitting apparatus according to claim 11 , wherein the light emitting device is mirror symmetric in a top view.
15 . The light emitting apparatus according to claim 11 , further comprising another light emitting device disposed adjacent to the light emitting device, wherein the light emitting device and the another light emitting device are electrically connected in parallel.